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A novel modelling approach to energy transport in a respiratory system

Perumal Nithiarasu Orcid Logo, Igor Sazonov Orcid Logo

International Journal for Numerical Methods in Biomedical Engineering, Volume: 33, Issue: 10, Start page: e2854

Swansea University Authors: Perumal Nithiarasu Orcid Logo, Igor Sazonov Orcid Logo

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DOI (Published version): 10.1002/cnm.2854

Abstract

In this paper, energy transport in a respiratory tract is modelled using the finite element method for the first time. The upper and lower respiratory tracts are approximated as a one-dimensional domain with varying cross sectional and surface areas and the radial heat conduction in the tissue is ap...

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Published in: International Journal for Numerical Methods in Biomedical Engineering
ISSN: 2040-7939
Published: Wiley 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa31211
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first_indexed 2016-11-24T14:27:28Z
last_indexed 2020-08-15T02:47:44Z
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spelling 2020-08-14T13:03:48.8773587 v2 31211 2016-11-24 A novel modelling approach to energy transport in a respiratory system 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 05a507952e26462561085fb6f62c8897 0000-0001-6685-2351 Igor Sazonov Igor Sazonov true false 2016-11-24 CIVL In this paper, energy transport in a respiratory tract is modelled using the finite element method for the first time. The upper and lower respiratory tracts are approximated as a one-dimensional domain with varying cross sectional and surface areas and the radial heat conduction in the tissue is approximated using the one dimensional cylindrical coordinate system. The governing equations are solved using one-dimensional linear finite elements with convective and evaporative boundary conditions on the wall. The results obtained for the exhalation temperature of the respiratory system have been compared with the available animal experiments. The study of a full breathing cycle indicates that evaporation is the main mode of heat transfer and convection plays almost negligible role in the energy transport. This is inline with the results obtained from animal experiments. Journal Article International Journal for Numerical Methods in Biomedical Engineering 33 10 e2854 Wiley 2040-7939 convection, evaporation, finite element method, heat transfer, respiratory system, stabilised method 24 10 2017 2017-10-24 10.1002/cnm.2854 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2020-08-14T13:03:48.8773587 2016-11-24T12:22:52.0649157 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Perumal Nithiarasu 0000-0002-4901-2980 1 Igor Sazonov 0000-0001-6685-2351 2 0031211-25112016083608.pdf nithiarasu2016.pdf 2016-11-25T08:36:08.4530000 Output 620554 application/pdf Accepted Manuscript true 2017-11-24T00:00:00.0000000 true eng
title A novel modelling approach to energy transport in a respiratory system
spellingShingle A novel modelling approach to energy transport in a respiratory system
Perumal Nithiarasu
Igor Sazonov
title_short A novel modelling approach to energy transport in a respiratory system
title_full A novel modelling approach to energy transport in a respiratory system
title_fullStr A novel modelling approach to energy transport in a respiratory system
title_full_unstemmed A novel modelling approach to energy transport in a respiratory system
title_sort A novel modelling approach to energy transport in a respiratory system
author_id_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d
05a507952e26462561085fb6f62c8897
author_id_fullname_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
05a507952e26462561085fb6f62c8897_***_Igor Sazonov
author Perumal Nithiarasu
Igor Sazonov
author2 Perumal Nithiarasu
Igor Sazonov
format Journal article
container_title International Journal for Numerical Methods in Biomedical Engineering
container_volume 33
container_issue 10
container_start_page e2854
publishDate 2017
institution Swansea University
issn 2040-7939
doi_str_mv 10.1002/cnm.2854
publisher Wiley
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description In this paper, energy transport in a respiratory tract is modelled using the finite element method for the first time. The upper and lower respiratory tracts are approximated as a one-dimensional domain with varying cross sectional and surface areas and the radial heat conduction in the tissue is approximated using the one dimensional cylindrical coordinate system. The governing equations are solved using one-dimensional linear finite elements with convective and evaporative boundary conditions on the wall. The results obtained for the exhalation temperature of the respiratory system have been compared with the available animal experiments. The study of a full breathing cycle indicates that evaporation is the main mode of heat transfer and convection plays almost negligible role in the energy transport. This is inline with the results obtained from animal experiments.
published_date 2017-10-24T03:38:06Z
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score 11.017797

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